diff --git a/resources/lang/de_DE/firefly.php b/resources/lang/de_DE/firefly.php
index 1f95518770..96e3644cf7 100644
--- a/resources/lang/de_DE/firefly.php
+++ b/resources/lang/de_DE/firefly.php
@@ -99,6 +99,8 @@ return [
     'cannot_change_demo'                         => 'You cannot change the password of the demonstration account.',
     'cannot_delete_demo'                         => 'You cannot remove the demonstration account.',
     'cannot_reset_demo_user'                     => 'You cannot reset the password of the demonstration account',
+    'per_period'                                 => 'Per period',
+    'all_periods'                                => 'All periods',
 
     // repeat frequencies:
     'repeat_freq_yearly'                         => 'Jährlich',